Television – Bandwidth reduction system – Data rate reduction
Patent
1995-03-17
1997-05-13
Britton, Howard W.
Television
Bandwidth reduction system
Data rate reduction
348397, H04N 712
Patent
active
056297378
ABSTRACT:
Technique for coding video images by filtering the original input image into subband images using successive high-pass and low-pass filterings over a tree-shaped filter bank. Each subband image is then submitted to activity detection and coded with a different number of levels depending on the activity detected and on the subband involved.
REFERENCES:
patent: 4713776 (1987-12-01), Araseki
patent: 4829378 (1989-05-01), LeGall
patent: 4943855 (1990-07-01), Bheda et al.
patent: 4969040 (1990-11-01), Gharavi
patent: 4987480 (1991-01-01), Lippman et al.
patent: 5128757 (1992-07-01), Citta et al.
patent: 5136374 (1992-08-01), Jayant et al.
patent: 5235420 (1993-08-01), Gharavi
patent: 5309232 (1994-05-01), Hartung et al.
patent: 5337085 (1994-08-01), Lee et al.
"Still-Image Coding Using Predictive Tree-VQ with Sub-band Decomposition", Jens-Rainer Ohm, IEEE 1990.
"Temporal Domain Sub-band Video Coding with Motion Compensation", Jens-Rainer Ohm, IEEE 1992.
"Sub-band Imaging Coding with Incorporating HVS Model", Hui et al, IE, 1992 Int'l Symposium.
"Perceptually Tuned Sub-band Image Coder with Image Dependent Quantization and Post-Quantittion Data Compression", Safronek et al, IEEE 1989.
"Subhand Coding Using Human Visual Characteristics for Image Signals", Kim et al, IEEE Journal on Selected Areas in Comm., vol. 11, No. 1, Jan. 1993, pp. 59-64.
"Transmission of Subhand-Gled Images in a Mobile Channels", Stedman et al, IEEE Trans. on Cir & Systems for Video Tech., vol. 3, No. 1, Feb. 1993, pp. 15-26.
"Subband Coding Algorithms for Video Applications, Videophone to HDTV-Conferencing", Ghargvi, IEEE Transactions on Circuits & Systems for Video Tech, vol. 1, No. 2, Jun. 91.
"Teilbandcodierung Von Bewegtbild-Sequenzen MIT 2 MBITS/S", Frequenz, vol. 40, No. 8, Aug. 31, 1988, New York, by Von Achim V. Brandt, pp. 190-197.
"Sub-Band Coding of Monochrome and Color Images" by H. Gharavi et al., IEEE Transactions on Circuits and Systems, vol. 35, No. 2, Feb. 28, 1988, New York, pp. 207-214.
"Subband Coding of Images" by J. Woods et al, IEEE Transactions on Acoustics, Speech & Signal Processing, vol. 34, No. 5, Oct. 31, 1986, pp. 1278-1288.
"Codeurs Video de Faible Complexite a Base De Codage En Sous-Bandes, De Compensation De Mouvement Hierarchisee Et De Quantifcation Vetorielle", by G. Furlan et al., Treiziene Colloque Gretsi, Sep. 20, 1991, Juan-Les-Pins-Fr, pp. 857-860.
"Recursive Subband Image Coding with Adaptive Prediction and Finite State Vector Quantization" by P. Jeanrenaud et al, Signal Processing, vol. 20, No. 1, May 31, 1990, Amsterdam NL, pp. 25-45.
Menez Jean
Rosso Michele
Scotton Paolo
Britton Howard W.
Duffield Edward H.
International Business Machines - Corporation
Le Vu
Timar John J.
LandOfFree
Method and apparatus for subband coding video signals does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for subband coding video signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for subband coding video signals will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1388951